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(318) 319-0220
Mark Johnson & Sons Plumbing — Lincoln Parish

HVAC inRuston,LA

Ruston is home base for Mark Johnson & Sons Plumbing — our HQ at 2803 S Service Rd W has anchored the city since 1997.

(318) 319-0220
Licensed30 yrs4.9★24/7 Emergency
  • 4.9★300+ Google Reviews
  • LicensedLouisiana Licensed HVAC Contractor
  • BBB A+Accredited since 1997
  • 24/7Emergency Service in Ruston

What to Expect

How it works in Ruston.

01

Call Us

A real person answers 24/7. Tell us what's wrong — we'll give you a ballpark quote on the phone and schedule a time that works.

02

We Arrive

Our plumber arrives in a Mark Johnson & Sons Plumbing van, in uniform, shoe covers on. Diagnoses the issue and quotes flat-rate before any work starts.

03

Fixed Right

We complete the work, clean up, and walk you through everything we did. Warranty covers our work for the life of the parts.

Mark Johnson & Sons Plumbing

Need AC or heating service in Ruston? Call now.

Real people answer 24/7. Same-day service available.

(318) 319-0220

Heating & Cooling in Ruston

Licensed HVAC Contractor Serving Ruston, LA

Mark Johnson & Sons has run heating and cooling in Ruston since 1997, out of the same dispatch as our plumbing side — so one call covers the whole house. Every tech who shows up is our own employee: Louisiana-licensed, background-checked, drug-tested, and trained on the equipment that actually sits in Ruston homes. We don't sub the work out, we don't hand you to a call center, and we quote flat-rate before we start — no diagnostic surprises, no high-pressure replacement pitch when a repair will do.

What we handle in Ruston

Why HVAC Works Harder in Ruston

Ruston's mix of campus rentals, established homes, and rural properties runs hard on cooling through long, humid North Louisiana summers — steady AC repair, tune-ups, and replacements, with both heat pumps and gas furnaces common. With a mix of suburban build eras across Ruston, we see the full range of equipment ages and duct conditions in a single service area — and the climate is unforgiving to all of it. Compressors that would coast for twenty years in a mild climate get worked hard here; refrigerant charge, capacitor health, and coil cleanliness all matter more when the system barely gets a night off from June through September.

Ruston blends historic homes near downtown and the Louisiana Tech campus with mid-century brick ranches and newer subdivisions toward Choudrant and Simsboro. Student rentals near campus see heavy fixture and drain use. That's why diagnosis beats guesswork. A Ruston home that isn't cooling in Downtown Ruston might have a failed run capacitor, a contactor that's pitted shut, a slow refrigerant leak at a flare fitting, a frozen evaporator coil from low airflow, or simply a filter nobody's changed in a year. We measure — superheat and subcooling, static pressure, temperature split, amp draw — and tell you which one it is, instead of adding refrigerant to a leak and sending you a bill.

Air Conditioning Repair in Ruston

AC repair is the highest-volume call we run in Ruston, and most of it breaks into a handful of failures: a bad run or start capacitor (the single most common no-cool cause), a burned contactor, a seized or noisy condenser fan motor, a clogged condensate drain tripping the safety switch, or low refrigerant from a leak. On R-410A systems we find and fix the leak before we recharge — topping off a leaking system is throwing money at the ground. On older R-22 units, where refrigerant is phased out and expensive, we'll tell you honestly when another repair stops making sense.

Every truck carries the common failure parts — capacitors, contactors, fan motors, hard-start kits, thermostats — so most Ruston repairs are same-visit, not a "we'll order the part and come back Thursday" when your house is 85 degrees inside.

AC & Heat-Pump Replacement — Sized Right

When a system is past its service life — generally 12 to 15 years in this climate, sooner for R-22 units — replacement usually pays for itself in efficiency and reliability. The single biggest mistake we correct on Ruston replacements is sizing: an oversized AC short-cycles, never runs long enough to pull humidity out of the air, and leaves the house cold and clammy. We run an actual Manual-J load calculation on the home — square footage, insulation, window load, duct condition — and size the equipment to it, rather than "matching what was there" or rounding up a ton to be safe.

We install high-efficiency AC, heat-pump, and dual-fuel systems from Trane, Carrier, and Rheem, set the refrigerant charge by weight and verify it by subcooling, and commission every install so it actually hits its rated performance. Financing is available, and we'll walk the real payback math with you before you sign anything.

Heating, Furnaces & Heat Pumps in Ruston

Ruston's winters are mild with the occasional hard freeze, which makes heat pumps a strong fit — they cool in summer and heat efficiently down to the temperatures this region actually sees, and pair with electric or gas backup for the cold snaps. We service and install heat pumps, gas furnaces, and dual-fuel systems, and our no-heat calls come down to the usual suspects: a dirty flame sensor, a cracked or failed hot-surface igniter, a blower motor or capacitor, a tripped limit switch, or a bad control board. Every no-heat visit includes a safety check — heat exchanger inspection and, on gas equipment, a look for combustion and carbon-monoxide issues.

Ductwork & Airflow

A perfectly good system can't cool a Ruston home if the ducts are leaking half the air into the attic. Leaky, undersized, or crushed ductwork is behind a huge share of "my AC can't keep up" and "one room is always hot" complaints, and we see it constantly in older Tech Campus area-area homes. We test static pressure and airflow, seal and repair duct runs, add or resize returns where a system is starved for air, and balance the registers so the back bedrooms get the same air as the ones nearest the handler. Fixing airflow often recovers more comfort than a bigger unit would have.

Humidity & Indoor Air Quality

Humidity is the other half of comfort in North Louisiana — a house that's cool but damp feels worse than one a few degrees warmer and dry, and the moisture drives mold, dust mites, and that musty summer smell. A correctly-sized system that runs longer cycles pulls humidity out on its own; where that isn't enough, we add whole-home dehumidification, better media or HEPA filtration, and UV or duct solutions for the mold and allergen load a humid climate creates. If someone in the Ruston home has allergies or asthma, indoor air quality is worth taking seriously, not treating as an upsell.

Maintenance That Actually Prevents Breakdowns

Because the equipment works year-round here, the twice-a-year tune-up that comes with our Classic Membership — a spring AC visit and a fall heating visit — is the single cheapest way to keep a Ruston system from dying on the hottest or coldest day of the year. Maintenance holds efficiency (a dirty coil or low charge quietly runs up your power bill), catches a weak capacitor or a marginal contactor before it strands you, and protects the manufacturer's warranty, which almost always requires documented annual service. Members also get priority scheduling and a discount on repairs.

Licensing, Permits & Code in Ruston

HVAC change-outs and new installs in Ruston require mechanical permits and inspections, and refrigerant handling is federally regulated — both are licensed work, not a handyman job. Mark Johnson & Sons carries the state mechanical licensing, EPA-certified techs, and the general liability and workers' comp coverage any Ruston homeowner should ask about before letting a crew into the house. City of Ruston permitting; rural Lincoln Parish parcels often on private well and septic. We pull the permits, schedule the inspections, and hand you the signed-off paperwork for your records and any future home sale — you don't chase the Lincoln Parish building department, we do.

24/7 Emergency HVAC in Ruston

No cooling in a Louisiana July is not an inconvenience — for infants, older adults, and anyone with a health condition, it's a genuine emergency, and a no-heat night during a hard freeze is the same. Ruston's university town — students, faculty, families, and rural homeowners deserve an HVAC company that actually answers at 2am. Home to Louisiana Tech University and Grambling State nearby Our emergency line is live around the clock, answered by a real dispatcher — not a voicemail — and our typical urgent response time across Ruston and the rest of the 71270 service area is under two hours. If your system is down in dangerous heat or cold, stop reading and call (318) 319-0220.

30 years serving Ruston.

Same-day service · Flat-rate pricing · Family-owned since 1997.

By the Numbers

Mark Johnson & Sons Plumbing in Ruston — By the Numbers

30

Years in Business

300+

5-Star Reviews

4.9★

Google Rating

24/7

Emergency Response

Our AC quit during a July heat wave and Mark Johnson & Sons had a new system in by that evening — they did a real sizing calc instead of just swapping what was there, and the house has never cooled better. Honest quote up front, clean install, and they walked us through everything. Best HVAC experience we've had in Ruston.

Joanna W.

Downtown Ruston · AC Installation

Verified Google Review

Mark Johnson & Sons Plumbing

Ready to book HVAC service in Ruston?

Flat-rate pricing, no surprises. We'll quote before we start.

(318) 319-0220

FAQs

Heating & Cooling FAQs — Ruston, LA

Yes — we're a full HVAC contractor as well as a plumber, so one call covers your whole home. Our licensed techs service and install central AC, heat pumps, gas and electric furnaces, ductless mini-splits, thermostats, and ductwork across all of Ruston and Lincoln Parish, with the same flat-rate pricing and 24/7 live answering as our plumbing side.

We run same-day HVAC service for most Ruston calls booked before 2pm, and our 24/7 emergency line handles no-cooling and no-heat calls around the clock — a real dispatcher answers, never a machine. In a North Louisiana summer, a dead AC is a genuine emergency, and our typical urgent response time in Ruston is under two hours.

We quote the repair honestly first and never push a replacement you don't need. As a rule of thumb, if the system is past 12–15 years, uses phased-out R-22 refrigerant, or the repair runs more than about a third of replacement cost, replacement usually pays for itself in efficiency — especially given how many hours a Ruston AC runs each year. When replacement is the right call, we size the new system with a real load calculation, not a guess.

Yes. Our Classic Membership includes two tune-ups a year — a spring AC visit and a fall heating visit — which is the single cheapest way to keep a Ruston system from failing on the hottest or coldest day, hold its efficiency, and protect the manufacturer's warranty. Members also get priority scheduling and a discount on any repairs.

More Mark Johnson & Sons Services in Ruston

One team for every home service in Ruston

Mark Johnson & Sons runs plumbing and HVAC out of the same dispatch. One call, one trusted team, flat-rate pricing across every service we offer.

Why Mark Johnson & Sons Plumbing

Why we're your trusted plumbing partner.

North Louisiana homeowners have leaned on Mark Johnson & Sons for over two decades. Here's why.

Licensed & background-checked

Every tech is state-licensed, background-checked, and continuously trained.

Same-day response, 24/7

Real humans on the phone, techs dispatched fast, any hour, any day.

Upfront flat-rate pricing

We quote before we start. No hidden fees. No bait-and-switch.

No-mess guarantee

Shoe covers on, drop cloths down. We leave your home cleaner than we found it.

Owner Mark Johnson of Mark Johnson & Sons Plumbing

4.9

300+ Google Reviews

Available Around the Clock

Emergency?
We answer 24/7.

Burst pipe, water heater out, sewer backup? Real plumbers pick up — no answering machines. Mark Johnson & Sons Plumbing serves North Louisiana any time, day or night.

(318) 319-0220

LA Master Plumbing #1874 · Backflow Cert #28131 · Master Natural Gas Fitter #LMNGF9062 · State Contractors #35794

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